Sprucie Bonus!

Posted by Graeme Lyons , Wednesday 11 December 2019 21:22

This is the final part of my spidering trip to the south east and the plot twist that makes every good season finale. We headed up on to the edge of Bodmin to a woodland site called Cardinham Woods.

First up though, we pulled into a garden centre for a quick lifer! Achaearanea tepidarorium.

Right back to the woods and Tylan found me another life in about five seconds, Cryphoeca silvicola at the top of the post. And nearby the commonest spider I hadn't seen this year, Tegenaria sylvestris. Then we climbed the hill through spruce plantation but the ground flora was dominated by bramble and not very interesting. A bit higher and we found some heather regenerating in a clearfel area and it was almost totally devoid of spiders. Then a nice warm south-facing heathy bank. Almost totally devoid of spiders. I did find what I believe is Brown Snail Zenobiella subrufescens that I have been looking at on the front of the atlas for the last ten years. 

We spent a good hour and a half finding next to nothing. Then, a dark and dank spruce plantation that was freezing cold beckoned. There was no light. No vascular plants BUT a carpet of bryophytes. It looked just like the end scenes of Under the Skin.

We needed to use our phone torches to see despite clear skies a few metres away. I started sieiving Thuidium tamariscinum and that's where ALL the linys were! 

In less than an hour we added loads of new species. Four for my year list, three of which were lifers for me! Best of all was this Centromerus serratus, nationally rare and new to Cornwall!

Gongylidiellum latebricola (nationally scarce) was abundant there, only the 2nd time I have seen this and new for the year. Lots of Monocephalus were present and both castanipes (nationally scarce) and fulvipes were present. Also there were plenty of Coelotes atropos, Macrargus rufus and a few nice things that Tylan took. A weird pale liny turned out to be Porrhomma pallidum (a lifer - thanks to Tylan for the photo below) and on the way back down the hill, Walckenaeria alticeps (nationally scarce) and another lifer. It was remarkable how much there was compared to the heath. Quite counter intuitive. Anyway, a massive thanks to everyone but especially to Tylan and Matt. I am very pleased with 367 spiders, I hope this is going to be an opportunity to push this up a little more though. 

Here is the full list for the weekend, 91 species in all with 21 (22%) having conservation status. Which show just how much there is to see even in the middle of winter. I had 16 lifers (species in bold) and 18 species new for the year! What's remarkable though is that a quarter of the 367 species of spider I have seen this year I saw in a long weekend in December!!!

Achaeranea simulans
Achaeranea tepadorium
Agroeca cuprea NR
Amaurobius fenestralis
Amaurobius similis
Anelosimus vittatus
Anyphaenea accentuata
Araneus diadematus
Bathyphantes gracilis
Centromerita concinna
Centromerus dilutus
Centromus serratus NR
Ceratinella brevipes
Cercidia prominens NS
Clubiona corticalis
Clubiona genevensis NR
Cnephalocotes obscurum
Coelotes atropos
Crustulina guttata
Cryphoeca silvicola
Cryptachaea blattea
Dictyna latens
Dipoena inornata NS
Dolomedes fimbriatus NS
Episinus angulatus
Episinus maculipes NS
Eratagina saeva
Erigone atra
Erigone dentipalpis
Euophrys frontalis
Euophrys herbigrada NR
Gnaphosa occidentalis NR
Gnathonarium dentatum
Gonatium rubens
Gongylidiellum latebricola NS
Gongylidiellum vivum
Harpactea hombergi
Hypsosinga sanguinea NS
Labulla thoracica
Lepthyphantes leprosus
Lepthyphantes minutus
Macrargus rufus
Mangora acalypha
Meioneta mollis NR
Meioneta rurestris
Metellina mengei
Metellina merianae
Micrommata virescens NS
Microneta viaria
Minyriolus pusilus
Monocephalus castaneipes NS
Monocephalus fuscipes
Neon reticulatus
Neottiura bimaculata
Neriene clathrata
Neriene montana
Neriene peltata
Nesticus cellulanus
Nigma puella NS
Nophothantes horridus NR
Padiscura pallens
Palliduphantes pallidus
Pelecopsis susannae
Philodromus dispar
Pholcomma gibbum
Pholcus phalangioides
Phrurolithus festivus
Phylloneta sisyphia
Pisaura mirabilis
Porrhomma pallidum
Savignya frontata
Segestria bavaraica NR
Steatoda nobilis
Taranuncus setosus NS
Tegenaria sylvestris
Tenuiphantes alacris
Tenuiphantes cristatus
Tenuiphantes tenuis
Tenuiphantes zimmermanni
Theridion varians
Theridiosoma gemmosum NS
Thyreosthenius parasitcus
Tiso vagans
Uloberus plumipes
Walckenaeria alticeps NS
Walckenaeria nodosa NS
Walckenaeria nudipalpis
Xystcius erraticus
Zilla diodea
Zora spinimana
Zygiella x-notata

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